It literally looks like a clone of fzf or sk complete with prompt and file previews. The fact that ithe article doesn’t event reference the prior art is deeply concerning.

Why can’t I remember the find parameters?

I don’t know. Perhaps write a couple of aliases?

find can be a bit slow because it enumerates every directory recursively from the root you specified, but it let’s you do a lot more than just search by name. locate is available on most distros and give fast results, albiet from when the index was last rebuilt (usually nightly). They both have the vital property that they output a list of files to stdout for further processing.